Delighted when her parents allow her to adopt a goldfish, young Lainey wonders if she has made a mistake when she attempts to bring her new pet to Never Land.

Aspiring Professional Adventurer Mr. Penguin, his colleague, Colin the spider, and friends Edith and Gordon crash-land on a snowy mountain where they face an evil hypnotist and seek missing pets.--

During a trip to Oregon, the Aldens are astonished when Watch discovers a backpack filled with valuables, a finding that compels them to learn what happened and return the backpack to its rightful owner.

Pip lives by his wits in the city of Clarel. But when he picks the wrong pocket, Pip finds himself in possession of a strange dried heart in a silver casket--and those who lost it will stop at nothing to get it back. With assassins on his trail and the ominous heart beginning to whisper to him, Pip and his childlike older sister El are drawn deeper into the forbidden world of magic. Now they must seek the help of the secret witches of Clarel and Princess...

When Horrible Harry's pet cat, Googer, sneaks a ride and gets into the school building, third-graders Harry and Doug have to catch him before anyone else does, which means going into some forbidden places.

Sam, Lucy, and Antonio have a new substitute teacher, who happens to be the great-great-grandson of Orson Eerie, the evil scientist whose spirit possesses and infects their elementary school--and the friends are afraid he may be trying to bring Orson back to life.

Taking a turn caring for the class pet hamster, Marion is devastated when the hamster goes missing and she receives an anonymous letter in her locker with clues leading to a mysterious scavenger hunt.

Using her excellent memory, Cam Jansen, aided by her friend Eric, investigates the disappearance of Mrs. Scott's valuable pearl necklace during a charity brunch.

While escaping from the strange men that are after him in London, Jimmy discovers he possesses many unusual talents for an eleven-year-old boy.

When pet gerbil Obi's owner Rachel gets a new puppy, Obi is jealous, but when the puppy runs away it is up to Obi to brave the dangers of the outside world and bring the new pet home.